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Lucero García Rojas EY, Villanueva C, Bond RA. Hypoxia Inducible Factors as Central Players in the Pathogenesis and Pathophysiology of Cardiovascular Diseases. Front Cardiovasc Med 2021; 8:709509. [PMID: 34447792 PMCID: PMC8382733 DOI: 10.3389/fcvm.2021.709509] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 07/09/2021] [Indexed: 01/01/2023] Open
Abstract
Cardiovascular (CV) diseases are the major cause of death in industrialized countries. The main function of the CV system is to deliver nutrients and oxygen to all tissues. During most CV pathologies, oxygen and nutrient delivery is decreased or completely halted. Several mechanisms, including increased oxygen transport and delivery, as well as increased blood flow are triggered to compensate for the hypoxic state. If the compensatory mechanisms fail to sufficiently correct the hypoxia, irreversible damage can occur. Thus, hypoxia plays a central role in the pathogenesis and pathophysiology of CV diseases. Hypoxia inducible factors (HIFs) orchestrate the gene transcription for hundreds of proteins involved in erythropoiesis, glucose transport, angiogenesis, glycolytic metabolism, reactive oxygen species (ROS) handling, cell proliferation and survival, among others. The overall regulation of the expression of HIF-dependent genes depends on the severity, duration, and location of hypoxia. In the present review, common CV diseases were selected to illustrate that HIFs, and proteins derived directly or indirectly from their stabilization and activation, are related to the development and perpetuation of hypoxia in these pathologies. We further classify CV diseases into acute and chronic hypoxic states to better understand the temporal relevance of HIFs in the pathogenesis, disease progression and clinical outcomes of these diseases. We conclude that HIFs and their derived factors are fundamental in the genesis and progression of CV diseases. Understanding these mechanisms will lead to more effective treatment strategies leading to reduced morbidity and mortality.
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Affiliation(s)
| | - Cleva Villanueva
- Instituto Politecnico Nacional, Escuela Superior de Medicina, Mexico City, Mexico
| | - Richard A Bond
- Department of Pharmacology and Pharmaceutical Sciences, University of Houston, Houston, TX, United States
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Circulating CD34+VEGFR-2+ endothelial progenitor cells correlate with revascularization-mediated long-term improvement of cardiac function in patients with coronary chronic total occlusions. Int J Cardiol 2020; 322:1-8. [PMID: 32810548 DOI: 10.1016/j.ijcard.2020.08.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 07/04/2020] [Accepted: 08/07/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Endothelial progenitor cells (EPCs) participate in angiogenesis and neocollateralization. This study assessed if circulating EPCs can predict long-term improvement of global left ventricular systolic function in patients with coronary chronic total occlusions (CTOs) underwent successful percutaneous coronary intervention (PCI). METHODS In this single-center, prospective, observational study, 115 consecutive patients with CTOs were evaluated by standard transthoracic echocardiography (ECHO) before and 9-12 months after PCI. Numbers of circulating putative EPCs were determined by flow cytometry analysis of mononuclear cells isolated from peripheral blood samples drawn before and 72 h after PCI. RESULTS At mean 11.3 ± 2.5 months post vs. before PCI (all P < .05): by SAQ-7 summary scores, angina frequency, physical limitation and quality of life scores were greater; by ECHO, LVEDd decreased and LVEF increased, which were more significant in patients with Rentrop grades 2/3 vs. 0/1. At 72 h post vs. before PCI, CD34+VEGFR-2+CD133- (0.82 ± 0.32 × 106/L vs. 1.00 ± 0.39 × 106/L, P = .003), CD34+VEGFR-2+CD133+ (0.24 ± 0.12 × 106/L vs. 0.27 ± 0.14 × 106/L, P = .028), and CD14+Tie2+VEGFR-2+ (6.60 ± 3.32 × 106/L vs. 7.82 ± 3.91 × 106/L, P = .006) cell numbers were lower. The baseline levels of CD34+VEGFR-2+cells (P = .001) and CD14+Tie2+VEGFR-2+cells (P < .001) were association with the grade of collateralization. In addition, the baseline and peri-procedural decrease of circulating CD34+VEGFR-2+ cells correlated with the increase of LVEF (P < .001, P < .001, respectively) and the decrease of LVEDd (P = .022, P = .029, respectively) at follow-up. CONCLUSIONS In this small study, the baseline levels of circulating CD34+VEGFR-2+ EPCs and its reduction after successful revascularization of CTOs correlated with long-term improvement in global LV systolic function.
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Lalwani A, Warren J, Liuwantara D, Hawthorne WJ, O'Connell PJ, Gonzalez FJ, Stokes RA, Chen J, Laybutt DR, Craig ME, Swarbrick MM, King C, Gunton JE. β Cell Hypoxia-Inducible Factor-1α Is Required for the Prevention of Type 1 Diabetes. Cell Rep 2020; 27:2370-2384.e6. [PMID: 31116982 PMCID: PMC6661122 DOI: 10.1016/j.celrep.2019.04.086] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 01/31/2019] [Accepted: 04/18/2019] [Indexed: 12/28/2022] Open
Abstract
The development of autoimmune disease type 1 diabetes (T1D) is determined by both genetic background and environmental factors. Environmental triggers include RNA viruses, particularly coxsackie-virus (CV), but how they induceT1D is not understood. Here, we demonstrate that deletion of the transcription factor hypoxia-inducible factor-1α (HIF-1α) from β cells increases the susceptibility of non-obese diabetic (NOD) mice to environmentally triggered T1D from coxsackieviruses and the β cell toxin streptozotocin. Similarly, knockdown of HIF-1α in human islets leads to a poorer response to coxsackievirus infection. Studies in coxsackievirus-infected islets demonstrate that lack of HIF-1α leads to impaired viral clearance, increased viral load, inflammation, pancreatitis, and loss of β cell mass. These findings show an important role for β cells and, specifically, lack of β cell HIF-1α in the development of T1D. These data suggest new strategies for the prevention of T1D. Lalwani et al. describe a role for β cell hypoxia-inducible factor-1α (HIF1a) in determining whether β cell injury is followed by resolution and normal function or ongoing injury, autoimmunity, and type 1 diabetes.
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Affiliation(s)
- Amit Lalwani
- Center for Diabetes, Obesity, and Endocrinology (CDOE), The Westmead Institute for Medical Research (WIMR), The University of Sydney, Sydney, NSW, Australia; Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Joanna Warren
- Mucosal Autoimmunity, Garvan Institute of Medical Research, Sydney, NSW, Australia
| | - David Liuwantara
- National Pancreas Transplant Unit (NPTU), Westmead Hospital, Sydney, NSW, Australia
| | - Wayne J Hawthorne
- Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia; National Pancreas Transplant Unit (NPTU), Westmead Hospital, Sydney, NSW, Australia
| | - Philip J O'Connell
- National Pancreas Transplant Unit (NPTU), Westmead Hospital, Sydney, NSW, Australia
| | - Frank J Gonzalez
- Laboratory of Metabolism, National Cancer Institute, Bethesda, MD, USA
| | - Rebecca A Stokes
- Center for Diabetes, Obesity, and Endocrinology (CDOE), The Westmead Institute for Medical Research (WIMR), The University of Sydney, Sydney, NSW, Australia
| | - Jennifer Chen
- Center for Diabetes, Obesity, and Endocrinology (CDOE), The Westmead Institute for Medical Research (WIMR), The University of Sydney, Sydney, NSW, Australia
| | - D Ross Laybutt
- Islet Biology, Garvan Institute of Medical Research, Sydney, NSW, Australia
| | - Maria E Craig
- Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia; The Children's Hospital at Westmead, Sydney, NSW, Australia; School of Women's and Children's Health, University of New South Wales, Kensington, NSW, Australia
| | - Michael M Swarbrick
- Center for Diabetes, Obesity, and Endocrinology (CDOE), The Westmead Institute for Medical Research (WIMR), The University of Sydney, Sydney, NSW, Australia; School of Medical Sciences, University of New South Wales, Kensington, NSW, Australia
| | - Cecile King
- Mucosal Autoimmunity, Garvan Institute of Medical Research, Sydney, NSW, Australia
| | - Jenny E Gunton
- Center for Diabetes, Obesity, and Endocrinology (CDOE), The Westmead Institute for Medical Research (WIMR), The University of Sydney, Sydney, NSW, Australia; Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia; St Vincent's Clinical School, University of New South Wales, Kensington, NSW, Australia; Department of Diabetes and Endocrinology, Westmead Hospital, Sydney, NSW, Australia.
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Emam SM, Amin AK, Issa NM, El-Attar MS. A Genetic Association Study of a Specific Gene and Severe Form of Resorption in the Edentulous Mandible in the Egyptian Population. J Prosthodont 2019; 28:409-415. [PMID: 30829443 DOI: 10.1111/jopr.13045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/22/2019] [Indexed: 11/27/2022] Open
Abstract
PURPOSE To investigate for the first time in Egypt and the Middle East the relationship between a specific gene and the presence of severely resorbed edentulous mandibular ridges in a sample of the Egyptian population. MATERIALS AND METHODS The study was conducted on 50 subjects divided into case and control groups according to the residual ridge height. Saliva was used as a convenient source of DNA in the dental clinic. A certain genetic variation (1772C>T) in an important gene related to bone healing (hypoxia-inducible factor-1 alpha [HIF1-α] gene) was selected. The genetic variation 1772C>T is a single nucleotide polymorphism (SNP) that occurs when corresponding sequences of DNA from different individuals differ at one base. Then, we have 2 forms of the gene (2 alleles): C and T. SNPs typically have 3 genotypes; in this study, they are the CC, CT, and TT genotypes. Polymerase chain reaction (PCR) restriction fragment length polymorphism (RFLP) was the method performed for genotyping. The statistical significance of the results was evaluated by the Chi-square test and Fisher Exact test. RESULTS A statistically significant difference in the distribution of the TT genotype between both groups was detected with p-value = 0.049. There was also a difference in the distribution of the CC and CT genotypes, but it was not statistically significant, since the p-values were 0.733 and 0.145, respectively. The T alleles were more abundant in the case group, while the control group showed more frequency of the C allele with no statistical significance. CONCLUSION The TT genotype of the 1772C>T polymorphism of HIF1-α gene is related to the presence of severely atrophied residual ridges in completely edentulous Egyptians. This can be used as a marker to predict the future condition of the ridge using saliva samples. Further studies on larger scale are recommended.
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Affiliation(s)
- Samar M Emam
- Department of Prosthodontics, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
| | - Asmaa K Amin
- Department of Human Genetics, Medical Research Institute, Alexandria University, Alexandria, Egypt
| | - Noha M Issa
- Department of Human Genetics, Medical Research Institute, Alexandria University, Alexandria, Egypt
| | - Mohamed S El-Attar
- Department of Prosthodontics, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
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Lei W, Ni J, Xia X, Jiang M, Bai G. Searching for synergistic calcium antagonists and novel therapeutic regimens for coronary heart disease therapy from a Traditional Chinese Medicine, Suxiao Jiuxin Pill. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1092:220-227. [PMID: 29908471 DOI: 10.1016/j.jchromb.2018.06.015] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 06/04/2018] [Accepted: 06/06/2018] [Indexed: 12/23/2022]
Abstract
Coronary heart disease is a vital cause of morbidity and mortality worldwide, and calcium channel blockers (CCBs) are important drugs that can be used to treat cardiovascular diseases. Suxiao Jiuxin Pill (SX), a traditional Chinese medicine, is widely used as an emergency drug for coronary heart disease therapy. However, understanding its potential mechanism in intracellular calcium concentration ([Ca2+]i) modulation remains a challenge. To identify the active pharmacological ingredients (APIs) and reveal a novel combination therapy for ameliorating cardiovascular diseases, the ultra-performance liquid chromatography/quadrupole time-of-flight mass spectrometry (UPLC/Q-TOF MS) combined with a dual-luciferase reporter [Ca2+]i assay system was applied. Ligustrazine, ferulic acid, senkyunolide I, senkyunolide A and ligustilide were identified as potential calcium antagonists in SX, and the combination of ligustrazine and senkyunolide A showed synergetic calcium antagonistic activity. Additionally, the synergetic mechanism was further investigated by live-imaging analysis with the Ca2+ indicator fluo-4/AM by monitoring fluorescence changes. Our results indicated that ligustrazine can block voltage-operated Ca2+ channels (VDCCs) effectively and senkyunolide A can exert an inhibition effect mostly on ryanodine receptors (RYRs) and partly on VDCCs. Finally, an arterial ring assay showed that the combination of ligustrazine and senkyunolide A exerted a better vasodilatation function than using any components alone. In this study, we first revealed that a pair of natural APIs in combination acting on VDCCs and RYRs was more effective on vasodilatation by regulating [Ca2+]i.
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Affiliation(s)
- Wei Lei
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin 300353, People's Republic of China
| | - Jianan Ni
- College of Traditional Chinese Medicine, Tianjing University of Traditional Chinese Medicine, Tianjin 300193, People's Republic of China
| | - Xueting Xia
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin 300353, People's Republic of China
| | - Min Jiang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin 300353, People's Republic of China.
| | - Gang Bai
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin 300353, People's Republic of China.
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Gladek I, Ferdin J, Horvat S, Calin GA, Kunej T. HIF1A gene polymorphisms and human diseases: Graphical review of 97 association studies. Genes Chromosomes Cancer 2017; 56:439-452. [PMID: 28165644 PMCID: PMC5395341 DOI: 10.1002/gcc.22449] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2016] [Revised: 01/20/2017] [Accepted: 01/23/2017] [Indexed: 12/15/2022] Open
Abstract
Hypoxia-inducible factors (HIFs) belong to a family of transcription factors (TF) responsive to a low O2 availability, which is often a characteristic feature of solid tumors. The alpha subunit of the HIF heterodimer is O2 -sensitive, and once stabilized in hypoxia, it functions as a master regulator of various genes involved in hypoxia pathway. Changes in the HIF1A (hypoxia inducible factor 1, alpha subunit) nucleotide sequence or expression has been shown to be associated with the development of several diseases. Because of increasing research interest in HIF1A gene a review of association studies was needed. We here reviewed published data on single nucleotide polymorphisms (SNPs) in HIF1A in various diseases; in total, 34 SNPs were tested for an association with 49 phenotypes, and the results were visualized using the Cytoscape software. Among all collected polymorphisms 16 SNPs showed significant associations with 40 different phenotypes, including six SNPs associated with 14 cancer types. Missense SNPs (rs11549465 and rs11549467) within the oxygen-dependent degradation domain were most frequently studied. The study provides a comprehensive tool for researchers working in this area and may contribute to more accurate disease diagnosis and identification of therapeutic targets.
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Affiliation(s)
- I Gladek
- Department of Animal Science, Biotechnical Faculty, University of Ljubljana, Groblje 3, 1230, Domzale, Slovenia
| | - J Ferdin
- Institute of Biochemistry, Faculty of Medicine, University of Ljubljana, Vrazov Trg 2, 1000 Ljubljana, Slovenia
| | - S Horvat
- Department of Animal Science, Biotechnical Faculty, University of Ljubljana, Groblje 3, 1230, Domzale, Slovenia
- National Institute of Chemistry, Hajdrihova 19, 1001 Ljubljana, Slovenia
| | - GA Calin
- Department of Experimental Therapeutics and The Center for RNA Interference and Non-Coding RNAs, The University of Texas, M.D. Anderson Cancer Center, So Campus Research Bldg 3, 1881 East Road, Houston, Texas, 77030, USA
| | - T Kunej
- Department of Animal Science, Biotechnical Faculty, University of Ljubljana, Groblje 3, 1230, Domzale, Slovenia
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Fernández‐Torres J, Martínez‐Nava GA, Gutiérrez‐Ruíz MC, Gomez‐Quiroz LE, Gutiérrez M. Papel da via de sinalização do HIF‐1α na osteoartrite: revisão sistemática. REVISTA BRASILEIRA DE REUMATOLOGIA 2017. [DOI: 10.1016/j.rbr.2016.04.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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Choi SH, Park JY. Regulation of the hypoxic tumor environment in hepatocellular carcinoma using RNA interference. Cancer Cell Int 2017; 17:3. [PMID: 28053598 PMCID: PMC5209894 DOI: 10.1186/s12935-016-0374-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 12/21/2016] [Indexed: 12/15/2022] Open
Abstract
Objectives Hypoxia is the condition where tumor cells have been deprived of oxygen and has been shown to have a role of tumor development in the hepatocellular carcinoma (HCC). Methods Using PubMed online database and Google scholar web site, the terms “angiogenesis”, “apoptosis”, “RNA interference” and/or “hepatocellular carcinoma (HCC)” were searched and analyzed. Results The hypoxia inducible factors (HIFs) are transcriptional regulators that affect a homeostatic response to oxidative stress and have been identified as a key transcription activator of angiogenesis, survival, and metabolism. Cytokines, such as IL-8, also controlled endothelia cells survival and angiogenesis. IL-8 was also overexpressed under hypoxia and induced tumor angiogenesis and growth. Conclusion Therefore, regulation of HIFs and IL-8 controlled the tumor microenvironment in terms of tumor angiogenesis and apoptosis. The review summarizes the results of regulation of the hypoxic tumor environment.
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Affiliation(s)
- Sung Hoon Choi
- Division of Bioconvergence Analysis, Drug and Disease Target Group, Korea Basic Science Institute, Daejeon, Korea
| | - Jun Yong Park
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
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Fernández-Torres J, Martínez-Nava GA, Gutiérrez-Ruíz MC, Gómez-Quiroz LE, Gutiérrez M. Role of HIF-1α signaling pathway in osteoarthritis: a systematic review. REVISTA BRASILEIRA DE REUMATOLOGIA 2016; 57:162-173. [PMID: 28343622 DOI: 10.1016/j.rbre.2016.07.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 04/28/2016] [Indexed: 12/20/2022] Open
Abstract
Osteoarthritis (OA) is the most common form of arthritis and is frequently diagnosed and managed in primary care; it is characterized by loss of articular hyaline cartilage, which is a unique connective tissue that physiologically lacks blood vessels. Articular cartilage survives in a microenvironment devoid of oxygen, which is regulated by hypoxia inducible factor (HIF-1α). HIF-1α is considered the main transcriptional regulator of cellular and developmental response to hypoxia. To date, the relevance of HIF-1α in the assessment of cartilage has increased since its participation is essential in the homeostasis of this tissue. Taking into account the new emerging insights of HIF-1α in the scientific literature in the last years, we focused the present review on the potential role of HIF-1α signaling pathway in OA development, especially in how some genetic factors may influence the maintenance or breakdown of articular cartilage.
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Affiliation(s)
- Javier Fernández-Torres
- Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra Ibarra", Laboratorio de Líquido Sinovial, Mexico City, Mexico; Universidad Autónoma Metropolitana Iztapalapa, Programa de Doctorado de Ciencias Biológicas y de la Salud, Mexico City, Mexico.
| | | | - María Concepción Gutiérrez-Ruíz
- Universidad Autónoma Metropolitana Iztapalapa, Programa de Doctorado de Ciencias Biológicas y de la Salud, Mexico City, Mexico
| | - Luis Enrique Gómez-Quiroz
- Universidad Autónoma Metropolitana Iztapalapa, Programa de Doctorado de Ciencias Biológicas y de la Salud, Mexico City, Mexico
| | - Marwin Gutiérrez
- Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra Ibarra", Laboratorio de Líquido Sinovial, Mexico City, Mexico; Universidad Autónoma Metropolitana Iztapalapa, Programa de Doctorado de Ciencias Biológicas y de la Salud, Mexico City, Mexico
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Amoah V, Wrigley B, Holroyd E, Smallwood A, Armesilla AL, Nevill A, Cotton J. Vascular endothelial growth factor and hypoxia-inducible factor-1α gene polymorphisms and coronary collateral formation in patients with coronary chronic total occlusions. SAGE Open Med 2016; 4:2050312116654403. [PMID: 27621802 PMCID: PMC5006805 DOI: 10.1177/2050312116654403] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 05/10/2016] [Indexed: 11/30/2022] Open
Abstract
Introduction: We evaluated the association between two single nucleotide polymorphisms of the vascular endothelial growth factor gene and one of the hypoxia-inducible factor-1α gene and the degree of coronary collateral formation in patients with a coronary chronic total occlusion. Methods: Totally, 98 patients with symptomatic coronary artery disease and a chronic total occlusion observed during coronary angiography were recruited. Genotyping of two vascular endothelial growth factor promoter single nucleotide polymorphisms (−152G>A and −165C>T) and the C1772T single nucleotide polymorphism of hypoxia-inducible factor-1α were performed using polymerase chain reaction and restriction fragment length polymorphism analysis. The presence and extent of collateral vessel filling was scored by blinded observers using the Rentrop grade. Results: We found no association between the vascular endothelial growth factor −152G>A, −165C>T and hypoxia-inducible factor-1α −1772C>T with the presence and filling of coronary collateral vessels. A history of percutaneous coronary intervention and transient ischaemic attack/cerebrovascular accident were associated with the presence of enhanced collateral vessel formation following binary logistic regression analysis. Conclusion: The study findings suggest that coronary collateral formation is not associated with the tested polymorphic variants of vascular endothelial growth factor and hypoxia-inducible factor-1α in patients with symptomatic coronary artery disease and the presence of a chronic total occlusion.
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Affiliation(s)
- Vincent Amoah
- Department of Cardiology, Heart and Lung Centre, New Cross Hospital, Wolverhampton, UK
| | - Benjamin Wrigley
- Department of Cardiology, Heart and Lung Centre, New Cross Hospital, Wolverhampton, UK
| | - Eric Holroyd
- Department of Cardiology, Heart and Lung Centre, New Cross Hospital, Wolverhampton, UK
| | - Andrew Smallwood
- Department of Cardiology, Heart and Lung Centre, New Cross Hospital, Wolverhampton, UK
| | - Angel L Armesilla
- Research Institute in Healthcare Science, School of Pharmacy, Faculty of Science and Engineering, University of Wolverhampton, Wolverhampton, UK
| | - Alan Nevill
- Faculty of Education, Health and Wellbeing, University of Wolverhampton, Wolverhampton, UK
| | - James Cotton
- Department of Cardiology, Heart and Lung Centre, New Cross Hospital, Wolverhampton, UK
- James Cotton, Department of Cardiology, Heart and Lung Centre, New Cross Hospital, Wolverhampton, West Midlands WV10 0QP, UK.
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Jiang G, Zhou R, He X, Shi Z, Huang M, Yu J, Wang X. Expression levels of microRNA-199 and hypoxia-inducible factor-1 alpha in brain tissue of patients with intractable epilepsy. Int J Neurosci 2015; 126:326-34. [PMID: 25539181 DOI: 10.3109/00207454.2014.994209] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVES During the last decade, experimental evidence has demonstrated an important role of hypoxia, which leads to neuronal cell death and angiogenesis, in the mechanisms of seizure precipitation and recurrence. MicroRNA-199 targets hypoxia-inducible factor-1alpha (HIF-1α), which has recently been implicated in the pathophysiology of the hypoxic state and brain injury. However, little is known about the roles of MicroRNA-199 and HIF-1α in the human epileptogenic process. DESIGN AND METHODS In this study, we investigated the expression of miR-199a-5p, miR-199b-5p and HIF-1α using real-time PCR, immunohistochemistry and western blots in the temporal neocortex of twenty four patients with intractable epilepsy and twelve control subjects. RESULTS Compared with the control group, the expression of miR-199a-5p and miR-199b-5p was significantly lower in epileptic brain tissues (p < 0.05). The levels of HIF-1α mRNA and protein were highly up-regulated in epileptic brain tissues compared with those of control subjects (p < 0.05). CONCLUSION These data suggest that the abnormal expression of miR-199 and HIF-1α in epileptic brain tissue may be involved in the pathophysiology of human epilepsy and that the expression of HIF-1α may be regulated by miR-199. These findings may provide new insights into the treatment of epilepsy.
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Affiliation(s)
- Guohui Jiang
- a 1 Department of Neurology, Institute of Neurology, Affiliated Hospital of North Sichuan Medical College , Wen Hua Road, Nanchong 637000 , China
| | - Ruijiao Zhou
- a 1 Department of Neurology, Institute of Neurology, Affiliated Hospital of North Sichuan Medical College , Wen Hua Road, Nanchong 637000 , China
| | - Xuzhi He
- b 2 Department of Neurosurgery, Daping Hospital and Institute of Surgery Research, Third Military Medical University , Chongqing 400042 , China
| | - Zhiqing Shi
- c 3 Diagnosis Department of Hebei Medical University , Shijiazhuang 050000 , China
| | - Min Huang
- a 1 Department of Neurology, Institute of Neurology, Affiliated Hospital of North Sichuan Medical College , Wen Hua Road, Nanchong 637000 , China
| | - Juming Yu
- a 1 Department of Neurology, Institute of Neurology, Affiliated Hospital of North Sichuan Medical College , Wen Hua Road, Nanchong 637000 , China
| | - Xiaoming Wang
- a 1 Department of Neurology, Institute of Neurology, Affiliated Hospital of North Sichuan Medical College , Wen Hua Road, Nanchong 637000 , China
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Townley-Tilson WHD, Pi X, Xie L. The Role of Oxygen Sensors, Hydroxylases, and HIF in Cardiac Function and Disease. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2015:676893. [PMID: 26491535 PMCID: PMC4600863 DOI: 10.1155/2015/676893] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/18/2015] [Revised: 03/26/2015] [Accepted: 04/10/2015] [Indexed: 12/14/2022]
Abstract
Ischemic heart disease is the leading cause of death worldwide. Oxygen-sensing proteins are critical components of the physiological response to hypoxia and reperfusion injury, but the role of oxygen and oxygen-mediated effects is complex in that they can be cardioprotective or deleterious to the cardiac tissue. Over 200 oxygen-sensing proteins mediate the effects of oxygen tension and use oxygen as a substrate for posttranslational modification of other proteins. Hydroxylases are an essential component of these oxygen-sensing proteins. While a major role of hydroxylases is regulating the transcription factor HIF, we investigate the increasing scope of hydroxylase substrates. This review discusses the importance of oxygen-mediated effects in the heart as well as how the field of oxygen-sensing proteins is expanding, providing a more complete picture into how these enzymes play a multifaceted role in cardiac function and disease. We also review how oxygen-sensing proteins and hydroxylase function could prove to be invaluable in drug design and therapeutic targets for heart disease.
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Affiliation(s)
- W. H. Davin Townley-Tilson
- Department of Medicine, Cardiovascular Research Institute, Baylor College of Medicine, Houston, TX 77030, USA
| | - Xinchun Pi
- Department of Medicine, Cardiovascular Research Institute, Baylor College of Medicine, Houston, TX 77030, USA
| | - Liang Xie
- Department of Medicine, Cardiovascular Research Institute, Baylor College of Medicine, Houston, TX 77030, USA
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Fernández-Torres J, Hernández-Díaz C, Espinosa-Morales R, Camacho-Galindo J, Galindo-Sevilla NDC, López-Macay Á, Zamudio-Cuevas Y, Martínez-Flores K, Santamaría-Olmedo MG, Pineda C, Granados J, Martínez-Nava GA, Gutiérrez M, López-Reyes AG. Polymorphic variation of hypoxia inducible factor-1 A (HIF1A) gene might contribute to the development of knee osteoarthritis: a pilot study. BMC Musculoskelet Disord 2015; 16:218. [PMID: 26293784 PMCID: PMC4546180 DOI: 10.1186/s12891-015-0678-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 08/12/2015] [Indexed: 11/10/2022] Open
Abstract
Background Osteoarthritis (OA) is a multifactorial degenerative condition of the whole joint with a complex pathogenesis whose development and progression is significantly mediated by interactions between the joint cartilage and articular tissues, particularly, proinflammatory mediators and oxidative stress, which results in cartilage deterioration and subchondral bone destruction. HIF-1 alpha regulates oxygen homeostasis in hypoxic tissues such as joint cartilage; efficiency of transcriptional activity of the HIF1A gene is strongly influenced by the presence of polymorphic variants. Given the loss of articular cartilage and with intention to restore damaged tissue, WISP-1 participates in the development of subchondral bone; further, its expression is highly increased in chondrocytes of OA patients. The aim of this study was to evaluate gene frequencies of HIF1A and WISP1 polymorphisms in Mexican patients suffering from knee OA. Methods We determined HIF1A rs11549465 (P582S), rs11549467 (A588T), and rs2057482 (C191T), and WISP1 rs2929970 (A2364G) polymorphisms in 70 Mexican patients with knee OA and compare them to those present in 66 ethnically matched healthy controls. Genotyping for these polymorphisms was performed by Real-Time PCR using TaqMan probes. Results Gene frequencies exhibited a significant increase of the CC genotype of rs11549465 polymorphism in knee OA patients as compared with those present in controls (P = 0.003 OR = 5.7, 95 % CI = 1.7–21.6); CT genotype and T allele showed decreased frequency in the knee OA group vs. the controls (P = 0.003 OR = 0.2, CI = 0.05–0.6; and P = 0.004 OR = 0.2, CI = 0.05–0.65, respectively). Allele frequencies of the other polymorphic variants were similar in both patients and controls. Conclusions These results suggest that the presence of the rs11549465 SNP (HIF1A) plays a role protective in the loss of articular cartilage in our population, and offers the possibility to further study the molecular mechanisms within cartilage and subchondral bone. Electronic supplementary material The online version of this article (doi:10.1186/s12891-015-0678-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Javier Fernández-Torres
- Synovioanalysis Molecular Laboratory, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra", Secretaría de Salud, Calzada Mexico-Xochimilco 289, Col. Arenal de Guadalupe, Tlalpan, 14389, Mexico, D.F., Mexico. .,Escuela Superior de Medicina, Instituto Politécnico Nacional, Calle Salvador Díaz Mirón esq. Plan de San Luis, Col. Santo Tomás, 11340, México, D.F., Mexico.
| | - Cristina Hernández-Díaz
- Musculoskeletal Ultrasound Laboratory, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra", Secretaría de Salud, Calzada Mexico-Xochimilco 289, Col. Arenal de Guadalupe, Tlalpan, 14389, Mexico, D.F., Mexico.
| | - Rolando Espinosa-Morales
- Rheumatology Service, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra", Secretaría de Salud, Calzada Mexico-Xochimilco 289, Col. Arenal de Guadalupe, Tlalpan, 14389, Mexico, D.F., Mexico.
| | - Javier Camacho-Galindo
- Cirugía Ortopédica, Centro Médico ABC, Av. Carlos Graef Fernández 154, Col. Tlaxala Santa Fe, Cuajimalpa, 05300, Mexico, D.F., Mexico.
| | - Norma del Carmen Galindo-Sevilla
- Departamento de Infectología e Inmunología Perinatal, Instituto Nacional de Perinatología "Isidro Espinosa de los Reyes", Secretaría de Salud, Calle Montes Urales 800, Col. Lomas Virreyes, Miguel Hidalgo, 11000, México, D.F., Mexico.
| | - Ámbar López-Macay
- Synovioanalysis Molecular Laboratory, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra", Secretaría de Salud, Calzada Mexico-Xochimilco 289, Col. Arenal de Guadalupe, Tlalpan, 14389, Mexico, D.F., Mexico.
| | - Yessica Zamudio-Cuevas
- Synovioanalysis Molecular Laboratory, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra", Secretaría de Salud, Calzada Mexico-Xochimilco 289, Col. Arenal de Guadalupe, Tlalpan, 14389, Mexico, D.F., Mexico. .,Escuela Nacional de Ciencias Biológicas (ENCB), Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala S/N, Col. Casco de Santo Tomás, Miguel Hidalgo, 11340, México, D.F., Mexico.
| | - Karina Martínez-Flores
- Synovioanalysis Molecular Laboratory, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra", Secretaría de Salud, Calzada Mexico-Xochimilco 289, Col. Arenal de Guadalupe, Tlalpan, 14389, Mexico, D.F., Mexico.
| | - Mónica Guadalupe Santamaría-Olmedo
- Synovioanalysis Molecular Laboratory, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra", Secretaría de Salud, Calzada Mexico-Xochimilco 289, Col. Arenal de Guadalupe, Tlalpan, 14389, Mexico, D.F., Mexico.
| | - Carlos Pineda
- Musculoskeletal Ultrasound Laboratory, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra", Secretaría de Salud, Calzada Mexico-Xochimilco 289, Col. Arenal de Guadalupe, Tlalpan, 14389, Mexico, D.F., Mexico.
| | - Julio Granados
- Immunogenetics Division, Instituto Nacional de Ciencias Médicas y Nutrición "Salvador Zubirán" (INCMNSZ), Secretaría de Salud, Vasco de Quiroga 15, Col. Sección XVI, Tlalpan, 14000, Mexico, D.F., Mexico.
| | - Gabriela Angélica Martínez-Nava
- Synovioanalysis Molecular Laboratory, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra", Secretaría de Salud, Calzada Mexico-Xochimilco 289, Col. Arenal de Guadalupe, Tlalpan, 14389, Mexico, D.F., Mexico.
| | - Marwin Gutiérrez
- Synovioanalysis Molecular Laboratory, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra", Secretaría de Salud, Calzada Mexico-Xochimilco 289, Col. Arenal de Guadalupe, Tlalpan, 14389, Mexico, D.F., Mexico.
| | - Alberto G López-Reyes
- Synovioanalysis Molecular Laboratory, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra", Secretaría de Salud, Calzada Mexico-Xochimilco 289, Col. Arenal de Guadalupe, Tlalpan, 14389, Mexico, D.F., Mexico.
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14
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Yang H, Wang Y. Five miRNAs considered as molecular targets for predicting neuroglioma. Tumour Biol 2015; 37:1051-9. [PMID: 26269115 DOI: 10.1007/s13277-015-3898-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Accepted: 08/05/2015] [Indexed: 02/04/2023] Open
Abstract
Neuroglioma is a complex neuroglial tumor involving dysregulation of many biological pathways at multiple levels. Here, we aim to screen differentially expressed miRNAs (DEMs) as well as the functions and pathways of their target genes in neuroglioma. miRNA high-throughput sequencing data were downloaded from The Cancer Genome Atlas (TCGA), and then the DEMs were subjected to perform principal component analysis (PCA) based on their expression values. Following that, Targetscan software was used to predict the target genes, and enrichment analysis and pathway annotation of these target genes were done by DAVID and KEGG, respectively. Finally, survival analysis between the DEMs and patients' survival time was done, and the miRNAs with prediction potential were obtained. A total of 33 DEMs were obtained, among which 25 miRNAs were upregulated including hsa-mir-675, hsa-mir-196a-1, and hsa-mir-196a-2, while eight miRNAs were downregulated including hsa-mir-1911, hsa-mir-1264, and hsa-mir-1298. Five miRNAs with diagnostic and preventive potentials were significantly correlated with survival time, including has-mir-155, has-mir-199b, has-mi-10a, has-mir-1274b, and has-mir-455. The target genes of miRNA identified in this study played important roles in tumor signaling pathways, and their detailed functions could be further studied so as to explore novel neuroglioma therapies.
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Affiliation(s)
- Haiyuan Yang
- Jiangsu Key Laboratory of Xenotransplantation, Nanjing Medical University, 140# Hanzhong Road, Nanjing, Jiangsu, 210029, China
| | - Ying Wang
- Jiangsu Key Laboratory of Xenotransplantation, Nanjing Medical University, 140# Hanzhong Road, Nanjing, Jiangsu, 210029, China.
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15
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Duran J, Olavarría PS, Mola M, Götzens V, Carballo J, Pelegrina EM, Petit M, Abdul-Jawad O, Otaegui I, del Blanco BG, García-Dorado D, Reig J, Cordero A, de Anta JM. Genetic association study of coronary collateral circulation in patients with coronary artery disease using 22 single nucleotide polymorphisms corresponding to 10 genes involved in postischemic neovascularization. BMC Cardiovasc Disord 2015; 15:37. [PMID: 25959001 PMCID: PMC4493944 DOI: 10.1186/s12872-015-0027-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Accepted: 04/21/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Collateral growth in patients with coronary artery disease (CAD) is highly heterogeneous. Although multiple factors are thought to play a role in collateral development, the contribution of genetic factors to coronary collateral circulation (CCC) is largely unknown. The goal of this study was to assess whether functional single nucleotide polymorphisms (SNPs) in genes involved in vascular growth are associated with CCC. METHODS 677 consecutive CAD patients were enrolled in the study and their CCC was assessed by the Rentrop method. 22 SNPs corresponding to 10 genes involved in postischemic neovascularization were genotyped and multivariate logistic regression models were adjusted using clinically relevant variables to estimate odds ratios and used to examine associations of allelic variants, genotypes and haplotypes with CCC. RESULTS Statistical analysis showed that the HIF1A rs11549465 and rs2057482; VEGFA rs2010963, rs1570360, rs699947, rs3025039 and rs833061; KDR rs1870377, rs2305948 and rs2071559; CCL2 rs1024611, rs1024610, rs2857657 and rs2857654; NOS3 rs1799983; ICAM1 rs5498 and rs3093030; TGFB1 rs1800469; CD53 rs6679497; POSTN rs3829365 and rs1028728; and LGALS2 rs7291467 polymorphisms, as well as their haplotype combinations, were not associated with CCC (p < 0.05). CONCLUSIONS We could not validate in our cohort the association of the NOS3 rs1799983, HIF1A rs11549465, VEGFA rs2010963 and rs699947, and LGALS2 rs7291467 variants with CCC reported by other authors. A validated SNP-based genome-wide association study is required to identify polymorphisms influencing CCC.
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Affiliation(s)
- Joan Duran
- Unitat d'Anatomia i Embriologia Humanes, Departament de Patologia i Terapèutica Experimental, Facultat de Medicina, Campus de Ciències de la Salut de Bellvitge, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, 08907, Spain.
| | - Pilar Sánchez Olavarría
- Unitat d'Anatomia i Embriologia Humanes, Departament de Patologia i Terapèutica Experimental, Facultat de Medicina, Campus de Ciències de la Salut de Bellvitge, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, 08907, Spain. .,Departamento de Estadística, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile.
| | - Marina Mola
- Unitat d'Anatomia i Embriologia Humanes, Departament de Patologia i Terapèutica Experimental, Facultat de Medicina, Campus de Ciències de la Salut de Bellvitge, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, 08907, Spain. .,Neurovascular Research Group (NEUVAS), Institut Municipal d'Investigació Mèdica. Hospital del Mar, PRBB, Parc de Recerca Biomèdica de Barcelona, Barcelona, Spain.
| | - Víctor Götzens
- Unitat d'Anatomia i Embriologia Humanes, Departament de Patologia i Terapèutica Experimental, Facultat de Medicina, Campus de Ciències de la Salut de Bellvitge, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, 08907, Spain.
| | - Julio Carballo
- Department of Cardiology and Hemodynamics, Centre Cardiovascular Sant Jordi, Barcelona, Spain.
| | - Eva Martín Pelegrina
- Department of Cardiology and Hemodynamics, Centre Cardiovascular Sant Jordi, Barcelona, Spain.
| | - Màrius Petit
- Department of Cardiology and Hemodynamics, Centre Cardiovascular Sant Jordi, Barcelona, Spain.
| | - Omar Abdul-Jawad
- Department of Cardiology, Hospital Mútua de Terrassa, Terrassa, Barcelona, Spain.
| | - Imanol Otaegui
- Department of Cardiology, Hospital Universitari Vall d'Hebron, Barcelona, Spain.
| | | | - David García-Dorado
- Department of Cardiology, Hospital Universitari Vall d'Hebron, Barcelona, Spain.
| | - Josep Reig
- Departament of Morphological Sciences, Universitat Autònoma de Barcelona, Bellaterra, Cerdanyola del Vallès, Barcelona, Spain.
| | - Alex Cordero
- Unitat d'Anatomia i Embriologia Humanes, Departament de Patologia i Terapèutica Experimental, Facultat de Medicina, Campus de Ciències de la Salut de Bellvitge, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, 08907, Spain. .,Àrea Epigenetics and Cancer Biology Area, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain.
| | - Josep Maria de Anta
- Unitat d'Anatomia i Embriologia Humanes, Departament de Patologia i Terapèutica Experimental, Facultat de Medicina, Campus de Ciències de la Salut de Bellvitge, Universitat de Barcelona, L'Hospitalet de Llobregat, Barcelona, 08907, Spain.
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Meka PB, Cingeetham A, Nanchari SR, Damineni S, Tipirisetti N, Gorre M, Jarjapu S, Annamaneni S, Digumarthi R, Satti V. HIF-1α (1772C>T) polymorphism as marker for breast cancer development. Tumour Biol 2014; 36:3215-20. [PMID: 25510668 DOI: 10.1007/s13277-014-2949-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2014] [Accepted: 12/04/2014] [Indexed: 11/29/2022] Open
Abstract
Hypoxia-inducible factor 1α (HIF-1α) is an important transcription factor that regulates different cellular responses to hypoxia. HIF-1α is rapidly degraded by von Hippel-Lindau (VHL) protein under normoxic conditions and stabilized under hypoxia. A common variant of HIF-1α (1772C>T) (rs 11549465) polymorphism, corresponding to an amino acid change from proline to serine at 582 position within the oxygen-dependent degradation domain, results in increased stability of the protein and altered transactivation of its target genes. The present study was aimed to find the association between HIF-1α (1772C>T) (rs 11549465) polymorphism and breast cancer development. For this purpose, 348 primary breast cancer patients and 320 healthy and age-matched controls were genotyped through PCR-RFLP method. The genotype frequencies were compared between patients and controls, and their influence on clinical characteristics of breast cancer patients was analyzed. Our study revealed a significant increase of TT genotype in breast cancer patients compared to controls (p = 0.038). Further, TT genotype and T allele were found to be associated with progesterone receptor (PR)-negative status (p < 0.09). None of the clinical variables revealed significant association with HIF-1α (1772C>T) (rs 11549465) polymorphism.
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17
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Liang J, Zhang Z, Liang L, Shen Y, Ouyang K. HIF-1α regulated tongue squamous cell carcinoma cell growth via regulating VEGF expression in a xenograft model. ANNALS OF TRANSLATIONAL MEDICINE 2014; 2:92. [PMID: 25405167 DOI: 10.3978/j.issn.2305-5839.2014.08.01] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Accepted: 07/21/2014] [Indexed: 11/14/2022]
Abstract
OBJECTIVE We aimed to study the mechanism of hypoxia-inducible factor 1 alpha (HIF-1α) regulating the cell proliferation of tongue squamous cell carcinoma (TSCC) via vascular endothelial growth factor (VEGF). METHODS We used RNA interference (RNAi) technique, transfected chemically synthesized siRNA against HIF-1α into CAL-27 cells, and detected the expression of HIF-1α and VEGF by real time-PCR and Western blotting in order to find out if HIF-1α regulated the expression of VEGF. A xenograft experiment was carried out to observe the role of HIF-1α on the tumor growth of tongue squamous cell carcinoma. RESULTS HIF-1α and VEGF mRNA expression was significantly downregulated 36 and 48 h after transfection (P<0.05); the protein expression of HIF-1α and VEGF was also significantly suppressed by siRNA against HIF-1α. Furthermore, intratumoraly injection of HIF-1α targeting siRNA suppressed tumor growth in nude mice. CONCLUSIONS HIF-1α regulated VEGF expression, and they may contribute to TSCC cell tumor growth.
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Affiliation(s)
- Jun Liang
- 1 Department of Oral and Maxillofacial Surgery, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China ; 2 Department of Stomatology, The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510655, China ; 3 Department of Stomatology, Shanghai Tenth People's Hospital, Shanghai 200072, China ; 4 Department of Oral and Maxillofacial Surgery, Stomatological Hospital of Guangzhou Medical College, Guangzhou 510140, China
| | - Zhaoqiang Zhang
- 1 Department of Oral and Maxillofacial Surgery, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China ; 2 Department of Stomatology, The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510655, China ; 3 Department of Stomatology, Shanghai Tenth People's Hospital, Shanghai 200072, China ; 4 Department of Oral and Maxillofacial Surgery, Stomatological Hospital of Guangzhou Medical College, Guangzhou 510140, China
| | - Lizhong Liang
- 1 Department of Oral and Maxillofacial Surgery, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China ; 2 Department of Stomatology, The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510655, China ; 3 Department of Stomatology, Shanghai Tenth People's Hospital, Shanghai 200072, China ; 4 Department of Oral and Maxillofacial Surgery, Stomatological Hospital of Guangzhou Medical College, Guangzhou 510140, China
| | - Yun Shen
- 1 Department of Oral and Maxillofacial Surgery, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China ; 2 Department of Stomatology, The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510655, China ; 3 Department of Stomatology, Shanghai Tenth People's Hospital, Shanghai 200072, China ; 4 Department of Oral and Maxillofacial Surgery, Stomatological Hospital of Guangzhou Medical College, Guangzhou 510140, China
| | - Kexiong Ouyang
- 1 Department of Oral and Maxillofacial Surgery, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China ; 2 Department of Stomatology, The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510655, China ; 3 Department of Stomatology, Shanghai Tenth People's Hospital, Shanghai 200072, China ; 4 Department of Oral and Maxillofacial Surgery, Stomatological Hospital of Guangzhou Medical College, Guangzhou 510140, China
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18
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López-Reyes A, Rodríguez-Pérez JM, Fernández-Torres J, Martínez-Rodríguez N, Pérez-Hernández N, Fuentes-Gómez AJ, Aguilar-González CA, Alvarez-León E, Posadas-Romero C, Villarreal-Molina T, Pineda C, Vargas-Alarcón G. The HIF1A rs2057482 polymorphism is associated with risk of developing premature coronary artery disease and with some metabolic and cardiovascular risk factors. The Genetics of Atherosclerotic Disease (GEA) Mexican Study. Exp Mol Pathol 2014; 96:405-10. [PMID: 24769354 DOI: 10.1016/j.yexmp.2014.04.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Accepted: 04/15/2014] [Indexed: 02/08/2023]
Abstract
The aim of the present study was to establish the role of HIF1A gene polymorphisms in the risk of developing premature coronary artery disease (CAD) in a well-characterized clinical cohort. Three polymorphisms in HIF1A (rs11549465, rs11549467, rs2057482) gene were genotyped in 949 patients with premature CAD, and 676 healthy controls (with negative calcium score by computed tomography). Under a dominant model adjusted for age, visceral to subcutaneous adipose tissue (VAT/SAT) ratio, hypertension, type 2 diabetes mellitus (T2DM), HDL-C levels, hypercholesterolemia and hypertriglyceridemia, the rs2057482 T allele was associated with decreased risk of premature CAD when compared to healthy controls (OR = 0.616, P(dom) = 0.020). The effect of the studied polymorphisms on various metabolic parameters and cardiovascular risk factors was explored. In this analysis, the rs2057482 T allele was associated with decreased risk of obesity, central obesity, hypertension, hypercholesterolemia, hypertriglyceridemia and increased risk of T2DM. Under a dominant model adjusted by age, the HIF1A rs2057482 T polymorphism was associated with high VAT/SAT ratio (P = 0.009) and HDL-C levels (P = 0.04) in healthy controls. The results suggest that HIF1A rs2057482 polymorphism is involved in the risk of developing CAD and is associated with some metabolic parameters and cardiovascular risk factors.
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Affiliation(s)
- Alberto López-Reyes
- Molecular Synovioanalisis Laboratory, Instituto Nacional de Rehabilitación, Mexico City, Mexico
| | | | - Javier Fernández-Torres
- Molecular Synovioanalisis Laboratory, Instituto Nacional de Rehabilitación, Mexico City, Mexico
| | - Nancy Martínez-Rodríguez
- Department of Molecular Biology, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico
| | - Nonanzit Pérez-Hernández
- Department of Molecular Biology, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico
| | | | | | - Edith Alvarez-León
- Department of Molecular Biology, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico
| | - Carlos Posadas-Romero
- Department of Endocrinology, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico
| | | | - Carlos Pineda
- Molecular Synovioanalisis Laboratory, Instituto Nacional de Rehabilitación, Mexico City, Mexico
| | - Gilberto Vargas-Alarcón
- Department of Molecular Biology, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico.
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